Free public Wi-Fi has become an essential service provided by state and local governments across the country. Whether it’s in public parks, libraries, municipal buildings, or even entertainment venues, free internet access isn’t just convenient. It also ensures equal access to government services and makes for a more connected and livable city, which ultimately supports economic growth.
However, offering public Wi-Fi can introduce significant cybersecurity vulnerabilities that expose both government agencies and the public to serious risks. While most CISOs are likely aware of these threats, many feel hamstrung by the limited resources, stiff private sector competition for talent and long budget cycles most municipalities face. With a threat landscape that’s constantly evolving, by the time cybersecurity expenditures have been approved in the annual budget, often the hardware or software is already obsolete and the latest version costs thousands more.
Even the most well-funded organizations have trouble keeping up. Numerous cities and states have experienced security breaches through bonafide, well-heeled software vendors. Large federal government systems have shown to be hacked with relative ease. Even major airports have proven vulnerable.
At a time when public trust in government is already on shaky ground, a breach could result in costly legal action and lasting damage to an agency’s reputation.
To avoid that, here are the critical areas where CISOs must focus their cybersecurity efforts for public Wi-Fi deployments.
Gain Network Visibility with Captive Portal Technology
Open Wi-Fi networks without authentication are extremely vulnerable. Devices like Wi-Fi pineapples allow attackers to sniff internet traffic, capture data, intercept communications and harvest sensitive information from unsuspecting users. These “evil twins” dupe people into connecting to what they believe is a legitimate public network, but it’s actually a malicious access point that logs all their activity, including banking credentials and personal information.
Implementing captive portal technology allows agencies to require user credentials before granting network access, providing visibility into who’s using the network, when and what they’re doing. Captive portals not only provide security, but also accountability and defense. If bad actors use the city network’s IP address for malicious activities, minimizing “mean time to innocence”—the time it takes to demonstrate the agency is not at fault—can make a huge difference in maintaining public trust and avoiding a major crisis.
Terms and Conditions Offer Legal Protection
As part of the captive portal agreement, requiring users to accept terms and conditions before accessing the network can help protect agencies against litigation. If a user’s personal information is compromised while using public Wi-Fi, they could potentially sue the city or county for damages.
Having clear terms of service that outline acceptable use policies, security and liability limitations, and user responsibilities provides a layer of legal protection. These terms also establish repercussions for noncompliant or malicious use, giving you recourse if abuse occurs.
Cybersecurity Insurance: The New Compliance Standard
Because of the risks and potential liabilities, many government agencies are now requiring vendors to carry cybersecurity insurance policies with multi-million-dollar coverage as a condition of even submitting a contract bid. This shift transfers risk and ensures that if an attack occurs, the vendor must be on board in mitigation, bringing in their own cyber experts to negotiate ransomware demands or remediate breaches.
CISOs should consider extending this requirement to all technology vendors and partners working with their agency. Additionally, many cyber insurance providers now require regular penetration testing to maintain policy compliance—a practice that strengthens overall security posture.
Network Segmentation Separates Public Access from Operations
Proper network provisioning is one of the simplest and most critical security measures. By creating clear separation between public Wi-Fi and government employee networks, constituents can have access to Wi-Fi service with zero pathway into internal systems, sensitive data or critical infrastructure.
This segmentation protects operational technology, including SCADA networks that control utilities like water and power infrastructure, point-of-sale and payment processing systems, and even employee communications like email and Slack messages.
Policy and Incident Response Planning for When, Not If
In any organization, cybersecurity policy must be approached from a “when, not if” mentality—assume it will happen and hope that it doesn’t. That means having robust incident response plans that outline exactly how you’ll detect vulnerabilities, remediate them quickly, and respond to active attacks. Who will negotiate with ransomware attackers? How will you communicate with the public? What recovery procedures will you follow?
Documenting (on paper) and rehearsing these procedures before an incident occurs is essential. A crisis plan will not only aid in faster response and recovery to mitigate damage and get systems up and running faster but also save your team a tremendous amount of stress, which can help bolster retention.
Cloud Considerations
As with most businesses, modern government services increasingly rely on cloud-based applications. With so much data and processing power now hosted in the cloud, your security perimeter extends far beyond the firewalls inside brick-and-mortar buildings.
A public Wi-Fi strategy must account for cloud vulnerabilities and ensure that security protocols extend to all digital touchpoints, from online payment systems to vehicle registration renewals. And CISOs would be wise to hold cloud vendors to the same requirements for cybersecurity support and insurance as other vendors.
The Talent Challenge
Finally, securing the right expertise to manage these complex systems remains one of the biggest challenges facing government CISOs. Competition for cybersecurity talent from other agencies and the private sector makes it difficult to attract and retain qualified professionals.
Partnering with vendors who have deep cybersecurity expertise and solutions with security built-in can help bridge this gap. Look for a partner who’s as committed to your security as they are their own, rather than just selling you a product and walking away. Working with Managed Service Providers can be one option to provide the on-demand support you need in any network or IT-related emergency.
Cybersecurity is a Mandate
For government agencies, public Wi-Fi security isn’t just about protecting your own infrastructure and data—it’s also about safeguarding public trust. In an era when public Wi-Fi is more than just a convenience, CISOs must implement the same caliber of safeguards for public Wi-Fi as they would for any other government system. Doing so not only protects your agency or municipality but also the constituents you serve.
The author, Angela Quinn is the Senior Director of Business Development – the Americas for Nomadix, an ASSA ABLOY company.